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Hydroxylamine sulfate

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Hydroxylamine sulfate Basic information

Product Name:
Hydroxylamine sulfate
CAS:
10039-54-0
MF:
H2O4S.2H3NO
MW:
164.14
EINECS:
233-118-8
Mol File:
10039-54-0.mol
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Hydroxylamine sulfate Chemical Properties

Melting point:
170 °C (dec.)(lit.)
Boiling point:
56.5℃
Density 
1.86
storage temp. 
-20°C
solubility 
water: soluble(lit.)
form 
Crystals
color 
White
PH
3.6 (10g/l, H2O, 20℃)
Water Solubility 
329 g/L (20 ºC)
Sensitive 
Hygroscopic
Merck 
14,4828
Stability:
Stability Stable, but may be an explosion hazard - do not heat. May decompose explosively in the presence of alkalies. Air sensitive. Hygroscopic. Incompatible with copper, copper alloys, strong oxidising agents, strong bases, nitrites.
CAS DataBase Reference
10039-54-0(CAS DataBase Reference)
EPA Substance Registry System
Hydroxylamine sulfate (2:1) (10039-54-0)
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Safety Information

Hazard Codes 
Xn,N,E
Risk Statements 
22-36/38-43-48/22-50-40-21/22-2
Safety Statements 
22-24-37-61-36/37
RIDADR 
UN 2865 8/PG 3
WGK Germany 
3
RTECS 
NC5425000
21
TSCA 
Yes
HazardClass 
8
PackingGroup 
III
HS Code 
28251000
Toxicity
LD50 orally in Rabbit: 842 mg/kg LD50 dermal Rabbit 1500 - 2000 mg/kg

MSDS

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Hydroxylamine sulfate Usage And Synthesis

Chemical Properties

Also hydroxylammonium sulfate, or HS, (NH2OH)2·H2S04 is colorless crystals that are soluble in water and slightly soluble in alcohol. The solution has a corrosive action on the skin. Used as a reducing agent, photographic developer, purification agent for aldehydes and ketones, chemical synthesis, textile chemical, oxidation inhibitor for fatty acids, catalyst, in biological and biochemical research, for making oximes for paints and varnishes, and rustproofing.

Physical properties

Colorless, crystalline solid; melts at 177°C (decomposes); very soluble in386 HYDROXYLAMINE HYDROCHLORIDE / HYDROXYLAMINE SULFATEpp-03-25-new dots.qxd 10/23/02 2:38 PM Page 386 water; slightly soluble in alcohol.

Uses

Used as to purify aldehydes and ketones; reagent for mercury and silver detection in water; reducing agent.

Uses

As reducing agent in photography; in synthetic and analytical chemistry; to purify aldehydes and ketones. As antioxidant for fatty acids and soaps. As dehairing agent for hides.

Preparation

Hydroxylamine sulfate may be prepared by mixing stoichiometric amountsof hydroxylamine and sulfuric acid. It also may be prepared by electrolytical-ly reducing an aqueous solution of ammonium sulfate.

General Description

Colorless crystalline solid. Contact may cause severe irritation to skin, eyes, and mucous membranes. May be toxic by ingestion.

Air & Water Reactions

Water soluble.

Reactivity Profile

Sulfuric acid fumes may form in fires [USCG, 1999]. Solid Hydroxylamine sulfate explodes when heated to 170°C., [Chem. Process 26:30(1963)]. Sodium ignites on contact with hydroxylamine. (Mellor, 1940, Vol. 8, 292.)

Hazard

Irritant to tissue.

Health Hazard

Inhalation of dust or ingestion may cause systemic poisoning characterized by cyanosis, methemoglobinemia, convulsions, and coma. Contact with eyes or skin causes irritation.

Fire Hazard

Special Hazards of Combustion Products: Sulfuric acid fumes may form in fires.

Safety Profile

Poison by skin contact and intraperitoneal routes. Mutation data reported. A corrosive irritant to skin, eyes, and mucous membranes. Moderately explosive when exposed to heat or by chemical reaction. In the presence of alkalies at elevated temperatures, free hydroxylamine is liberated and may decompose explosively. When heated to decomposition it emits toxic fumes of SOx and NOx. See also AMINES and SULFATES.

Purification Methods

Crystallise it from boiling water (1.6mL/g) by cooling to 0o.

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Nanjing Lanbai Chemical Co., Ltd. Gold
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Nanjing Zhipu Chemical Co., Ltd Gold
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J & K SCIENTIFIC LTD.
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Alfa Aesar
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400-610-6006; 021-67582000
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saleschina@alfa-asia.com
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